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Bearing strength of bolts - oversized holes ?
mcerd1 - 14/6/12 at 09:25 AM

one for the structural engineers...


according to bs 5950 if I've got an M16 bolt in a std. oversized hole (20mm dia) then the bearing strenth of the connected parts is 0.7* that of the std. clearance hole

....so what happens when you end up with a 22mm hole instead ?


I'm fairly sure its strong enough, but I cna't find anything in the codes to back this up yet
(and this customer will insist on seeing the calcs)

Help!

-Robert


iank - 14/6/12 at 04:46 PM

Software engineer answer, buy some 22mm bolts and pretend you always intended them to be that size.
Not useful, but an easy way out potentially.


mcerd1 - 14/6/12 at 10:03 PM

unfortunatly its a 22mm hole on one part (the correct size for an M20), but some numpty has made the hole in the other part too small


Peteff - 15/6/12 at 12:45 PM

Fit a collar in the hole, bodger's answer.